EP 0906663 B1 20020911 - SERIAL-PARALLEL AND PARALLEL-SERIAL CONVERTER
Title (en)
SERIAL-PARALLEL AND PARALLEL-SERIAL CONVERTER
Title (de)
SERIELL-PARALLEL- UND PARALLEL-SERIELL-UMSETZER
Title (fr)
CONVERTISSEUR SERIE-PARALLELE ET PARALLELE-SERIE
Publication
Application
Priority
- SE 9700980 W 19970604
- SE 9602458 A 19960620
Abstract (en)
[origin: WO9749186A1] The invention relates to fast serial-parallel and parallel-serial converters, and in them included frequency dividers. The serial-parallel converter comprises a shift register (51), an output register (52) and a frequency divider (40). The parallel-serial converter comprises a register (61) and a frequency divider (40). All registers (51, 52, 61) and frequency dividers comprise clock inputs (CK0-CK7), that each is connected to some incoming clocksignal (CLK). According to the invention, the frequency divider (40) comprises at least two circuits (0-7) with the function of AND-gates with clocked memory circuits. Each circuit comprises a clockinput (CK0-CK7), a first AND-input, a second AND-input (SE0-SE7), and at least one output (Q0-Q7) that outputs the value of the logical AND-function of the two AND-inputs (SDI0-SDI7, SE0-SE7). The first AND-inputs (SDI0-SDI7) are connected to each other and to an inverted signal from one of the outputs (Q7). The second AND-inputs (SE1-SE7) except on the first circuit (0) are connected to the output (Q0-Q6) of the preceding circuit (0-6). Finally a frequency divided clocksignal (CLKdiv) may be taken out from one of the outputs (Q4).
IPC 1-7
IPC 8 full level
H03K 23/40 (2006.01); H03K 23/54 (2006.01); H03K 27/00 (2006.01); H03M 9/00 (2006.01)
CPC (source: EP US)
H03K 23/544 (2013.01 - EP US); H03M 9/00 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
WO 9749186 A1 19971224; AU 3279897 A 19980107; CN 1228886 A 19990915; DE 69715409 D1 20021017; DE 69715409 T2 20030807; EP 0906663 A1 19990407; EP 0906663 B1 20020911; JP 2000516054 A 20001128; SE 506817 C2 19980216; SE 9602458 D0 19960620; SE 9602458 L 19971221; US 6169500 B1 20010102
DOCDB simple family (application)
SE 9700980 W 19970604; AU 3279897 A 19970604; CN 97197389 A 19970604; DE 69715409 T 19970604; EP 97928572 A 19970604; JP 50277298 A 19970604; SE 9602458 A 19960620; US 20261599 A 19990923